Wheel-plow.



No. 669,957. Patented Mar.V I2, |90l.

E. M. HEYLMAN,

WHEEL PLOW.`

. (Application filed Nov. 16, 1900.)

(No Model.) `2 Sheets-Sheet l.

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No. 669,957; Patented nar. a2, |901'.

E, M. HEYLMAN. WHEEL -PLOW.

(Applicmau' mea Nov. 1a, 1900;)

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ii'NiTnD STATES PATENT @Ferca EDWARD M. HEYLMAN, OF OANTON, ILLINOIS, ASSIGNOR TO PARLIN AND ORENDORFF` COMPANY, INCORPORATED, OF SAME PLACE.

WH EEL-PLOW.

SPECIFICATION forming part of Letters Patent No. 669,957, dated March 12, 1901.

'Appleman med November 16,1900. seriainmsnze. (Nomads To all whom it may concern: lowered, thefoot-lever 31 inclines backward, Be it known that I, EDWARD M. HEYLMAN, and when itis desired to raise the plow forward of the city of Canton, county of Fulton, and pressure on the foot-lever carries arm 28 up- State of Illinois, have invented certain new ward and raises the plowto the positionshown 55 5 and useful Improvements in Wheel-Flows, of in Fig. 3. The lifting mechanism is particuwhich the following is a specification. larly applicable to plows swung on bails and This invention relates to means for raising partly supported by springs, and under these and lowering plows in a wheel-sustained circumstances the foot-lever will ordinarily frame. Itis exemplified in the structure herebe sufficient; but to provide for unusual cir- 6o ro inafter described and it is defined in the apcumstances and different environments the pended claims. hand-lever27 and notched quadrant 26 are In the drawings forming part of this specimade part of the lifting mechanism. So long ication, Figure l is a plan showing the genas the hand-lever is not needed it lies in the eral configuration of a wheel-plow in dotted position shown in the drawings, and whenever 65 x5 lilies and representing the features in which it is needed it is swung forward until a tooth my invention resides in solid lines. Fig. 2 is or bolt engages the notch of the quadrant, the a side elevation of the plow raising and lowplow being lowered, and backward pull on erin g mechanism, showing the plow beam the lever will then be transmitted to the plowlowered. Fig. 3 is a similar View showing the beam through the quadrant, the arm, and the 7o zo plow-beam raised. link. This provision enables the application A shaft 25 is journaled in asleeve-bracket of foot-pressure or hand-pressure or both attached to a side of the plow-frame, a quadhand-pressure and foot-pressure to the raisrant 26 is fixed onto the outer end of the shaft, ing of the plow. and a hand-lever 27 is fulcrumed on the shaft To hold the plow raised and provide for low- 75 25 in position to engage a notch of the quadrant ering the plow by foot action, a second footwhen swung forward. On the inner end of lever 37 is fulcrumed in the plowframe opshaft 25 is fiX'ed an arm 28, having a bellposite lever 3l, and a bell-crank extension crank extension 29, and a link 33 connects 38 of lever 37 is connected with the rear bailthe swinging end of the arm with the plowbracket 36 of the plow-beam through a stiff 8o 3o beam l5. A finger 34 on arm 28 extends link-bar 40. The link 40 has a finger 4:1 eX- above the link 33, and a set-screw 35 protending forward beyond its pivot with the vides means for limiting the swing of the arm foot-lever, and a stop-block 39 on extension with relation to the link. A foot-lever 31 is 38 of the lever limits the swing of the link on pivoted to the frame on the same side thereof the lever. When the plow is raised, the foot- 85 35 as the arm 28; but in front of such arm a belllever 37 swings forward, as shown in Fig. 8,

crank extension 32 is formed on foot-lever 3l, and the extension 38 and link 40 form a deadand a stiff link-bar 30 connects pivotally at center lock to hold the beam raised. When one end with bell-crank extension 29 of arm the beam is to be lowered, the foot-lever is 28 and at the other end with extension 32 of pushed forward suciently far to break the 9o 4o foot-lever 31. These parts constitute the liftdead-center lock and permit the plow to deing mechanism for the plow-beam, and they scend; are so disposed that when the plow is low- I claimered, as shown in Fig. 2, the arm 28 and link l. In a plow-lift, the combination of a lift- 33 are approximately in line. Whether or arm connecting with the plow-beam through 95 4 5 not the arm and the link establish a deada stiff link and forming with the link an eX- center lock to hold the plow lowered depends tended toggle-joint when the plow is lowered, on the adjustment of set-screw 35, and the a foot-lever to actuate the lift-arm and a secplow may be locked rmly in the ground or ond foot-leverconnectingwith the plow-beam the centers maybe held out of line sufficiently through a stilf link and forming with the link Too 5o to permit the plow to rise on encountering an a dead-center lock to hold the plow raised,

immovable obstruction. When the plow is substantially as described.

2. In a plow-lift, the combination of a liftand ahanddeverengageable with thelift-arm, arm connecting with the plow-beam through substantially as described. 1o a stiff link and forming with the link an ex- In testimony whereofl sign my name in the tended toggle-joint when the plow is lowered, presence of two subscribing witnesses.

a foot-lever t0 actuate the lift-arm, a second EDWARD M. HEYLMAN. foot-lever connecting with the plow-beam Witnesses: through a stii link and forming with the link A. L. GARDNER,

a dead-center lock to hold the plow raised, GEO. W. POWELL. 

